The Sephirothic Tree of Life, primary symbol of the Cabalah, is based on esoteric knowledge brought out of Egypt by Moses. Passed on through the centuries, the Tree of Life serves as a connection between the physical and spiritual universes, demonstrating the flow of forces down from the Divine to the lowest world and back again. The "Joshua" Tree was so named by Mormon pioneers because it mimicked the Old Testament prophet Joshua waving them on towards the promised land. In its incarnation for HDTS, the Tree of Life appears as a sequenced light sculpture. A network of spheres transmit numerical emanations that activate different parts of an underlying structure. Within the epic context of the desert, the work seeks to find resonance between ancient and modern codes as it pulses and throbs in the darkness.